anonymous
  • anonymous
evaluate this integral!! how do i do this? thank you!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
|dw:1442204105077:dw|
CandyCove
  • CandyCove
I don't know the answer but I like your username!
Zale101
  • Zale101
Are you familiar with IBP?

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More answers

anonymous
  • anonymous
what does that stand for?
Zale101
  • Zale101
Integration by parts
anonymous
  • anonymous
a bit! just went over it earlier for a problem, but it was a long and confusing problem lol
anonymous
  • anonymous
so i find u, dv, dv, and v? would i have these so far? u=-sin x dv = dx du = dx / (1-x) v = x ?
Zale101
  • Zale101
|dw:1442204387503:dw|
Zale101
  • Zale101
Correct @iheartfood
anonymous
  • anonymous
okay!! and so i do this? |dw:1442204498064:dw|
Zale101
  • Zale101
|dw:1442204578798:dw|
Zale101
  • Zale101
|dw:1442204650518:dw|
anonymous
  • anonymous
okay!! and so what happens? i plug in and then get this? |dw:1442204676538:dw|
Zale101
  • Zale101
|dw:1442204717388:dw|
Zale101
  • Zale101
I see that you have sine instead of arcsine |dw:1442204781493:dw|
anonymous
  • anonymous
oh oops my bad haha i meant to write sin^-1x lol
Zale101
  • Zale101
Oh okay, but how did you get negative in front of sine?
anonymous
  • anonymous
ohh oops so it should be like this? |dw:1442204892821:dw|
anonymous
  • anonymous
the stuff you're writing keeps disappearing?
Zale101
  • Zale101
Correct.
Zale101
  • Zale101
|dw:1442205244552:dw|
anonymous
  • anonymous
haha okay so would i then simplify and get this? xarcsinx + (1/2)((u^-1/2 +1)/(-1/2 + 1)) --> xarcsinx + u^1/2 + c ?
anonymous
  • anonymous
would that be the correct solution?
Zale101
  • Zale101
Yes. What would be u tho?
Zale101
  • Zale101
u=1-x^2
anonymous
  • anonymous
yes:)
anonymous
  • anonymous
and so i plug in? xsin^-1 x + (1-x^2)^1/2 + c is the final solution?
Zale101
  • Zale101
Yes.
Zale101
  • Zale101
Good job ^_^
anonymous
  • anonymous
yay!! thanks so much!! do you have time for another one?
Zale101
  • Zale101
Sure.
anonymous
  • anonymous
okay!! im not sure if i am understanding this correctly? |dw:1442205581289:dw|
anonymous
  • anonymous
was that correct?
anonymous
  • anonymous
@Zale101 ?
Zale101
  • Zale101
Looks good to me.
Zale101
  • Zale101
Good job! :)
anonymous
  • anonymous
ooh yay!! thank you!!:D

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